Diffused light lamp



Dec. 20, 1932. A. STAUBER, JR

DIFFUSED LIGHT LAMP Filed May 20. 1951 gs Arronuivs.

Patented Dec. 20, 1 932 PATENT orrlca ANTON STAUBEB, 3" 1-3., OF CI-IIGAGO, ILLINOIS DIFFUSED LIGHT LAMB Application filed May 20,

This invention relates to certain novel improvements in diffused lightlamps, and has for its principal object the provision of an improvedconstruction of this character which will be highly eiflcient in use andeconomical in manufacture.

The primary object of this invention is to provide an improved lamp inwhich maximum diffusion of light is effected.

ther objects will appear hereinafter.

The invention consists in the novel combination and arrangement of partsto be hereinafter described and claimed.

The invention will be best understood by r ference to the accompanyingdrawing showmg the preferred form of construction, and in which:

Fig. 1 is a front elevational view of a preferred form of constructionof the invention; 2 is a sectional view on line 2-2 in Fig.1; and

Fig. 3 is a sectional view on line 3-3 in Fig. 2.

Referring to the drawing, which illustrates a practical embodiment oftheinvention, the

hemispherical body of the lamp is indicated at and this body has on itsinterior a reflecting surface having a porcelain or nickel- A platedcoating 11.

Fixed in the body 10 so as to extend forwardly toward the open s1dethereof is a tube or cylinder 12 in which is arranged the socket 13 andthe base 14 of the bulb 15 associated therewith in such amanner that thebulb 15 1s held approxiinatelyin the center of the lamp.

Socket 13 is connected current supply source.

A reflecting shade is indicated at 17. This shade is preferably nickelplated inby outlet line 16 to a if teriorly and is substantially afrusto-conical section in shape. A lens 18 is attached over the openfront end of the shade 17 by means of a retaining ring 19 and screws 20;

A glass insert is indicated at 21. This insert is substantially afrusto-conical section with the smaller end thereof directed inwardly.Preferably this insert is provided with a frosted finish so as toeliminate glare. The front end of the insert 21 abuts the lens 18 andthe rear end of the insert is supported by Serial No. 538,816.

lugs or fingers 22 which are arranged at radial intervals on a ring 23that is 'detachably secured, by screws 24-, between the flange 25 onbase 10 and the flange 26 on the shade 17.

In use, some of the light rays will be reflected by the porcelain orother reflecting sur face 11 out through lens 18. Most of the; rayshowever will be reflected by the surface 11 along the lines 27, againstthe reflector 17 and thence through the frosted glass insert 21 which,by reason of its frosted surface and the fact that it conceals the metalreflector 17, will eifectively diffuse the rays 27 and minimize theglare of said rays 27.

From the foregoing description it will be apparent to persons skilled inthe art that the invention provides an improved lamp which will beespecially useful wherever diffused light is desired such as intheatres, for illumi- 7 ing from the spirit of the invention. I,

therefore, do not .wish to be limited to the precise details ofconstruction set forth, but desire to avail myself of such variationsand modifications as come within the scope of the appended claim.

Having thus described my invention, what I claim as new and desire toprotect by Letters Patent is: g

A lamp comprising a substantially hemispherical hollow body having anopen end, said body being adapted to house illuminating means and beingprovided on its inner side with a reflecting surface, a reflectordisposed forwardly of said body, said reflector having its rear endattached to the open end of said body and having an open end, a lens,means for retaining said lens over the open end of said reflector, and asubstantially frusto-conical translucent glass insert in said reflectorand substantially coextensive therewith, said insert having its sidewalls spaced from the inner wall of said reflector, and having itssmaller end directed toward said body.

Intestimony whereof Iaffix my signature.

ANTON STAUBER, JR.

